Blackheart is a fictional demon in the . The character was created by Ann Nocenti and John Romita, Jr., and first appeared in Daredevil (vol. 1) #270 (Sept. 1989).
Centuries of murder in a locale named Christ's Crown, New York, draws the attention of a demon-lord, Mephisto, who creates a "son", Blackheart, from the energy of the accumulated evil. Blackheart explored the nature of evil under his father's tutelage, clashing with and failing to corrupt Daredevil and Spider-Man. Mephisto and Blackheart once tormented Daredevil, Brandy Ash, the genetically engineered Number Nine, and the Inhumans Gorgon, Karnak, and Ahura, manipulating their emotions and tricking them. They were soon drawn into hell for worse torments. Brandy Ash did not survive.
Later, in an attempt to be free of captivity, Blackheart makes contact with Misha from the group Warheads and becomes the source of her pre-cognitive visions. Eventually Misha's squad, Kether Troop, invades Hell itself and frees Blackheart, who was temporarily in the disguise of Doctor Strange. Blackheart's plan to have the Troop slay Mephisto falls apart.
Mephisto sent Blackheart to Earth with diminished powers to learn humility. Blackheart returns to Christ's Crown and tempts Ghost Rider, Punisher, and Wolverine to the town itself in an attempt to corrupt them. Blackheart brainwashes the entire town and kidnaps a young girl all three men had befriended. His stated goal was to get the three men to cross their own personal line of not harming the innocents; Blackheart states crossing this line would soon allow the trio to destroy Mephisto. The group eventually follows Blackheart and the girl back into his own realm for a final confrontation. Blackheart is defeated and everyone leaves safely.
Read more about Blackheart at Wikipedia ...
Official Site: Marvel Comics
Links: Blackheart Wiki Entry Marvel Universe- Blackheart Comic Vine- Blackheart